diff --git a/common/requirements.txt b/common/requirements.txt
index 556507c..3fb6782 100644
--- a/common/requirements.txt
+++ b/common/requirements.txt
@@ -33,7 +33,7 @@ pickleshare==0.7.4
 Pillow==4.1.1
 prettytable==0.7.2
 prompt-toolkit==1.0.7
-protobuf==3.0.0b2
+protobuf==3.18.3
 psclient==2.0
 ptyprocess==0.5.1
 pyasn1==0.2.3